ComboBox Accessibility
The ComboBox is accessible by screen readers and provides WAI-ARIA, Section 508, WCAG 2.2, and keyboard support.
For more information, refer to:
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WAI-ARIA
The component follows the WAI-ARIA Authoring Practices for implementing the keyboard navigation for its component role and is tested against the popular screen readers. For more information, refer to the article on WAI-ARIA support in Telerik UI for ASP.NET MVC.
According to WAI-ARIA 1.1 specification "Authors must ensure an element with role combobox contains or owns a text input element with role textbox or searchbox...". Note, that in our implementation, the text input element is the one that has role="combobox", and does not contain another text input element. This approach is valid for the WAI-ARIA 1.2 specification and also for the WAI-ARIA 1.0 specification .
As it is stated in WAI-ARIA 1.2 "The Guidance for combobox has changed significantly in ARIA 1.2 due to problems with implementation of the previous patterns". Therefore, we will keep the current state, even if it contradicts the WAI-ARIA 1.1 specification.
Section 508
The ComboBox is compliant with the Section 508 requirements. For more information, refer to the article on Section 508 support in Telerik UI for ASP.NET MVC.
WCAG 2.2
The ComboBox supports the standards for providing accessible web content which are set by the Web Content Accessibility Guidelines 2.1. For more information, refer to the article on WCAG 2.2 compliance in UI for ASP.NET MVC